H49.1 - Fourth [trochlear] nerve palsy

  • Applicable to Fourth [trochlear] nerve palsy
  • The 2025 edition of ICD10-CM H49.1 became effective on October 1, 2024.
  • This is the American ICD10-CM version of H49.1 - other international versions of ICD10 H49.1 may differ.
  • H49.1 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • H49.1 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
  • H49.1 - Fourth [trochlear] nerve palsy
    • H49.1 - Fourth [trochlear] nerve palsy
    • H49.10 - Fourth [trochlear] nerve palsy, unspecified eye
    • H49.11 - Fourth [trochlear] nerve palsy, right eye
    • H49.12 - Fourth [trochlear] nerve palsy, left eye
    • H49.13 - Fourth [trochlear] nerve palsy, bilateral

The following codes above H49.1 contain annotation back-references that may be applicable to H49.1:

Chapter: H00-H59 Diseases of the eye and adnexa

Section: H49-H52 Disorders of ocular muscles, binocular movement, accommodation and refraction

Category: H49 Paralytic strabismus

nerve icd 10
 
palsy icd 10
 
Non-Billable/Non-Specific Code

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